1312311301111 has 16 divisors (see below), whose sum is σ = 1388638468800. Its totient is φ = 1238676012288.

The previous prime is 1312311301087. The next prime is 1312311301121. The reversal of 1312311301111 is 1111031132131.

It is a cyclic number.

It is not a de Polignac number, because 1312311301111 - 2¹¹ = 1312311299063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312311301121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3585051 + ... + 3934108.

It is an arithmetic number, because the mean of its divisors is an integer number (86789904300).

Almost surely, 2^{1312311301111} is an apocalyptic number.

1312311301111 is a deficient number, since it is larger than the sum of its proper divisors (76327167689).

1312311301111 is an equidigital number, since it uses as much as digits as its factorization.

1312311301111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519338.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1312311301111 its reverse (1111031132131), we get a palindrome (2423342433242).

The spelling of 1312311301111 in words is "one trillion, three hundred twelve billion, three hundred eleven million, three hundred one thousand, one hundred eleven".